Existing EV batteries could be recharged five times faster

Overcharging a lithium-ion battery anode can lead to lithium buildup, which can break through a battery's separator, create a short-circuit and cause catastrophic failure. That can cause the electrolyte to emit gases and literally blow up the battery, so manufacturers impose strict charging power limits to prevent it.

Those limits are based on hard-to-measure internal temperatures, however, which is where the WMG probe comes in. It's a fiber optic sensor, protected by a chemical layer that can be directly inserted into a lithium-ion cell to give highly precise thermal measurements without affecting its performance.

The team tested the sensor on standard 18650 li-ion cells, used in Tesla's Model S and X, among other EVs. They discovered that they can be charged five times faster than previously thought without damage. Such speeds would reduce battery life, but if used judiciously, the impact would be minimized, said lead researcher Dr. Tazdin Amietszajew.

The headset weighs just three ounces, and it can be worn over an existing pair of glasses. Its main selling point is an integrated micro-display -- while you are wearing it, it's as if you are looking at a five-inch mobile screen from 17 inches away.
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Marcello10h agoThis was posted on Oculus forums about 15 mins ago. Out of date certificate is the cause. Hey everyone - This is an issue with our software certification that we are still actively working on.
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